Since 1 January 2009, Luxembourg has allowed dual citizenship.[1] Since then, many Belgians have made use of the new law to adopt Belgian-Luxembourgish citizenship, especially Belgians living in Arelerland, a part of the Belgian province of Luxembourg at the border with the Grand Duchy.[2]

One may request Luxembourgish nationality through naturalisation under several conditions:

It is also possible to "recover" Luxembourg nationality if one can prove he had an ancestor who was Luxembourgish as at 1 January 1900. The Luxembourg diaspora at the time moved to France, Belgium and the US. As at end of 2013, thousands of people recovered the nationality of their Luxembourgish ancestor.